A kilometer-long section of a disused overpass in the heart of Seoul has been converted into an urban nursery with more than 24,000 potted plants, shrubs and trees.

The Seoul Station Overpass was built in the 1970s to provide a vehicular connection from Namdaemun market, the largest traditional market in Seoul to the East, across the station area to the various parks in the West. In 2006, following intensive safety inspections, the City of Seoul deemed the 17-meter high structure of the overpass unsafe and intended to demolish and rebuild it. But after further consultation with residents and experts, the city came up with a plan to regenerate the overpass into a pedestrian walkway and public space. A design competition was launched in 2015, and a Dutch studio named MVRDV won the project.